Transactions With Related Parties

6 Months Ended

Jun. 30, 2012

Related Party Transactions [Abstract]

Transactions With Related Parties

10. Transactions with Related Parties

Sales, purchases and other transactions with affiliated companies, in the opinion of management, are conducted under terms no more or less favorable than then-existing market conditions. The transactions with related parties were as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
	2012		2011		2012		2011
Revenues:
Petroleum products sales to an affiliate of the Robertson Group (1)	$	4,578	$	11,533	$	14,766	$	21,254
Sales of CO2 to Sandhill Group, LLC (2)	660		432		1,273		975
Petroleum products sales to Davison family businesses (1)	374		245		686		487
Costs and expenses:
Marine operating fuel and expenses provided by an affiliate of the Robertson Group (1)	2,244		780		4,201		1,820
Amounts paid to our CEO in connection with the use of his aircraft	150		—		300		—

(1) The Robertson Group owned 9% of our Class A common units and 74% of our Class B common units at June 30, 2012. The Davison family owned 15% of our Class A common units at June 30, 2012.

(2) We own a 50% interest in Sandhill Group, LLC.

Amounts due to and from Related Parties

At June 30, 2012 and December 31, 2011, an affiliate of the Robertson Group owed us $0.2 million and $1.9 million, respectively, for petroleum product sales. We owed the affiliate $0.2 million and $0.1 million, respectively, for marine related costs. Sandhill Group, LLC owed us $0.4 million and $0.2 million, at June 30, 2012 and December 31, 2011, respectively, for purchases of CO₂.